I'm taking you liking the post to mean yes. In which case, I think I got it! Head's a bit hazy right now so I'll know for sure by tomorrow morning, but thank you so much!! I really appreciate you taking the time you did to answer my questions
"If there's no vapor in the tank, then ##V_1=V_2##" So you can't simply have a liquid with a volume less than the tank volume. The second you do, you are in the region to the right of the saturated liquid phase (i.e saturated liquid-gas mixture)
Okay I think now I am close to getting it. What would the case then be where V1 << V2 AND there's no vapor in the tank? Or is this a case we simply don't consider. So we only have 1) tank full of liquid,2) liquid + gas, 3) only gas as possibilities. And if I understand correctly, saturated...
Why though. Let's say V1 is the volume of the compressed liquid and V2 the tank. And V2>>V1. In this case, the specific volume of the compressed liquid would be calculated V1/M in the tables while a saturated liquid at that pressure might have a volume in the vicinity of V1, let's say V1 plus a...
But even if it was a compressed liquid, we wouldn't know because we're not dividing the volume of the liquid by its mass, and this is the value that is given in tables and that we're using as a standard for comparison.
Yes, agreed with the first part. And this would hold even for the compressed liquid state, correct?
The second part, what I'm thinking is: imagine a piston pushing down on a liquid contained in a cylinder with some pressure. This compresses the liquid. So wouldn't the the specific volume for a...
Yes. So what I'm not getting is why they're dividing the volume of the vessel by 4kg. They're then comparing this value with 0.0007435. The two would only be equal if they were the volume of the liquid by 4kg (or equivalently, that the vessel was fully filled, in which case dividing the volume...
I really appreciated your answers. Something just wasn't clicking with me. So I thought getting different perspectives would perhaps help. Please don't take it personally, I really do appreciate your help.
They have used similar lines of reasoning in future solved examples where it's not so clear that the tank will be filled with liquid
For example, here, when they compare the ##v## value with ##v_g## and ##v_f##, to determine the state, it would only make sense if, when it is in liquid state, it...
So I'm reading through Cengel's thermodynamics textbook, and came across this solved example:
Firstly, pressure in this context I'm assuming is vapour pressure? Since we're dealing with pure substances in this chapter.
But what's confusing me is, here's the diagram I have:
They've not...
Homework Statement
I want to find the maximum displacement of block A in the left direction
Homework EquationsThe Attempt at a Solution
I first found the velocities of both blocks after the bullet escapes with 100m/s by using the impulse-momentum theorem.
I then applied the work-energy...
Even if we choose the Earth to be our reference, the electrostatic work done in moving a body from one point to another will be zero unless there is another charged body nearby in which case potential will defined with respect to the position from that charged object.
I don't understand how...
Potential of a body is defined as the amount of work done in bringing that body from infinity up to some point divided by its charge.
The Earth has zero net charge, so the work done in bringing any charge from infinity till the Earth is zero.
So what do statements like, "The potential of this...
If you apply Kirchoff's laws, say in an anticlockwise manner, the answer will depend on whether you assume the potential to drop or rise across either one of the capacitors or rise/drop across both capacitors